To set up vpn connection on your iPhone, iPad or iPod Touch you need to do the next steps:
Go to Settings > General > VPN.
Click Add VPN Configuration.
Choose PPTP VPN and enter you VPN account data. You will receive your VPN server, username and password in the e-mail. Server address must be exactly as in your account data (without http://, www or any other symbols)
Save your VPN configuration. Once you have created VPN connection you can switch it ON and OFF on the main settings screen.